Dead or damaged cells are replaced by the process of _________ fertilization |
b. mitosis |
Key events of mitosis |
Mitotic spindle forming sister chromatids centered Chromosomes separating Nuclear envelopes forming |
Stages of mitosis |
Interphase Prophase Metaphase Anaphase Telophase and cytokinesis |
Stages of meiosis |
interphase prophase I Metaphase I Anaphase I Telophase I Cytokinesis Meiosis II |
What leads to an individual having too many or too few chromosomes? |
Nondisjunction |
What is genetics? |
studies the inheritance of genes (located on chromosomes) come in alternate forms called alleles. When copies are the same, it is called homozygous. When copies differ it is called heterozygous. (expressed: dominant ; unexpressed: recessive) |
Genes located near one another on the same chromosome are often inherited together. These are called ___________ |
linked genes |
Recessive disorders related to genes found on the X chromosome but not on the Y are more commonly expressed in ______ males |
males |
The offspring produced via sexual reproduction are genetically __________ to the parents parsimonious |
unique |
Genes are located on ________ chromosomes |
a. chromosomes |
How many chromosomes would a typical human cell have after mitosis but before cytokinesis? 92 |
92 |
What specifically separates during mitosis? homologous chromosomes |
Sister Chromatids (B) |
How many chromosomes did you inherit from your father? |
23 |
What produces genetically unique daughter cells? Meiosis |
Meiosis (A) |
What is crossing over? |
the exchange of pieces of homologous chromosomes |
How many chromosomes would by found in the karyotype of a Down syndrome female? |
47 |
What is different between two alleles of the same gene? |
The information they carry. For example, one allele might carry the information for blue eye pigment, while the other carries the information for brown eye pigment |
Assuming incomplete dominance, if a homozygous red-flowered plant is crossed with a homozygous white flowered plant, what will be the color of the offspring? White |
pink |
Biology 100 Test review Chapter 5
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